Running-gear for cars.



J. P. FOX. RUNNING GEAR POR GARS. APPLICATION FILED 0120.19, 1012.

Patented. July 22, 1913 outer end of the hub closed by an integral part and through the center of this and oncentric with the axle I pass a bolt 6 having arhexadon Wall o? the hub. The holt makefr'fa close running fit in the opening proteici/led for it in 'the hub, and is sutliciently to project throughand beyond the other end of the The bore of the hubmay spiral channel 12 semiwcircular in cross sec-v tion or any other design o' the lubricant may be used. The greaseS-has access to the bearings 'through the open ends` vTo facilitate the grease Work-- mits entrance of air and this is to remove the nut the chamber 2 through the open end ofthev axle. The nut 10 permits the two Wheels to' be adjusted relatively 4to different track gages and as I do not prefer, to draw the two `wheels into close running Contact with the play of the Wheels on axle, its end thus exposed being threaded and screwed into a threadedopening 8 in the portion 5 of the hub of Wheel 9. A look nut 1() is then screwed on the'end of the bolt and a cotter pin 11 passed through the nut. The bolt thus holds the'two hubs of the Wheels tied together in running position on thea'xle. be provided with a feed groove -for ofthe axle. ing out from chamber 2,' I tapit and screw in a plug 13 having an air vent 'which perlug maybe unscrewed asa means for intro ucing grease to fill the axle, though the preferable manner 10 andvvheel 9 and 'fill ends of the axle, I provide or'a small lateral a pump at one end to suck out the grease from the axle and at the other end as a means to force the grease into the bearing.'

In order to reduce the Wearbetween the ends of the axle and the inner Walls of the hub a cent-ral opening in the plug a holt l5 which.

has its head 16 engaging the innervface of tlie plug and has its outer end threaded and adapted to screw into'the threaded opening 17 in the hub ot wheel-18 and to receive a lock nut 19 through which I pass a e'otter pin `20 which secures the wheel against, disenagement from the axle; rlhe head 16 of t 1e bolt vis provided with a transverse slot 21 and the outer end of the bolt 1 5 is squared 4at 22 to receive a wrench. Wheel 18 on the axle its threaded opening 17 is moved opposite the threaded end of the bolt 15 which is held against rotation by a head 7 which engages thg'alrouter,

the axle which acts as' Inethis case, instead of extending a' To mount the messes long'screw driver which is passed through the axle chamber 2 and engages in slot .21 and then the Wheel is turned and screwed engaged by a wrench and turned While the Wheel is held, thereby drawingV the Wheel onto the axle. The nut 19 is then-screwed onto the end of the bolt and held by Cotter The v'vheel 18 is thus. mounted free for rotapin 20 to lock the Wheel in running position..

onto the bolt until the end 22 of the bolt projects without the wheel so that it can be tion on the' axle 1a which at its other end is "internally threaded and hasfthe hub 23er"- riguid thereon. A pipe plug 25 is screwed into the threaded end of the axle which turns With- Wheel 24 in suitabl'e bearings 2G.- The axle '1a in this construction has oil openings Qigopposite its4 several bearing pointsgrease W'orks into the?,

through Which the bearings. inasmuch tight intothe hub of llhewheel 1 8, there Iis no .opportunity for dirt to work intov the, bearing at this oint. The friction between the nut 15 and' t "it occurs'onhywhen compensating movement ClllVES.

chamber-2 in the axle gradually Works out through the o'penends of the axle in Fig. l. 11i the oase of Fig. 2 it works out through the openings 27, the force; exerted centrifugally on thegrease it to. the bearings proportimatelyV tothe ,speed of rotation and therefore tothe demands of the bearings. This a-c'tionfis' exactly opposite to the gally on oil 'or' grease in chambers inthe Wheels or hubs, for there it. acts to drawl the needed. {'In Wheels which run continuously provide the spiral groove 28' in the axle may be substituted, as shown in Fig. 2.l In the ordinary mine car which runs back and forth in the mine and equally, the 'spirali groove most edectively applies the lubricant,' moving it in both directions over the Whole 'aee My fastening means is practically fricingsurfaces can be vhardened'vto give the 'maximum Wear-'at the 'least expensevand a tubular axle provides 'the maximum storage capacity for lubricant and at asubStantiall decrease in cost as compared with constructions vvhich provide the lubricant chamber in the Wheel. L

Having thus described my invention, what 1. In a running gear for cars, a hollovv eplug 14 isnegligible, since tionless, therwheels run freely andwith'the A requisite lateral play on the axles, -the bear' izo the Wheel 24' shrunk on it or 4otherwise. held i as the bolt is screwed is"Y required of the wheel 18 in rounding.

yIn operation, the grease` Whichiills .the i y being-directed to supply force exerted centriuv lubricant from the bea r1ng when most ina given direction it will be`inadvisable to l 'grooves 12 and the plane 'the Wheels of which mais in bothdirecaoas A.

I claim as new and desire to secure by Let- 'axle open at its ends .which is adapted to and having cylindrical wheel bearings, wheels having hubs which are mounted on said cylindrical bearings and which have closed ends which serve to close the open ends of the axle, means to tie said wheels together free of the axles, which means extend longitudinally through the axle, and means to introduce lubricant within the axle, said wheels being connected together to permit of their adjustment together bodily and longitudinally on the axle to a predetermined extent, substantially as and for the purposes described.

2. In combination, an axle formed pf heavy tubing, wheels having hubs lwhich fit over and close the be illed with lubricant, and means to tie the wheels together which passes centrally throughthe axle, said tie means holding move together longitudinally on said axle, as and for the purposes described.

ln a running gear for cars, the combination of a hollow axle formed of tubing Y'case hardened at its bearing ends which are left open, the bearings being cylindrical, of Wheels having hubs closed at their outer ends and adapted to be mounted on and close the open ends of the axle, a retaining bolt which passes centrally through the axle and through the wheel hubs, said bolt passing loosely through one hub and being screwed into the other to hold said wheels adjusted for a limited longitudinal play' on said axle, and a head on the bolt to enopen ends of the axlel said wheels connected to,

gage the hub of the wheel loose thereon, substantially as described.

4. In a running gear for cars, the eombi- 4 nation of a hollowr axle formed of tubing open at each end and filled with grease, of wheels having hubs which are mounted on said axle and are closed at their outer ends which are cast with an internal chill hardened bearing face opposite the end of the axle, a wheel retaining bolt which passes centrally through the axle and adjustably connects the wheel hubs and holds them in running position on the axle, the ends of the hubs being held spaced from the ends of the axle to 'permit a limited longitudinal adjustment of the wheels thereon, substantially asI described.

5. In a runningv gear for cars, an axle formed of heavytubing, wheels having hubs which fit over and rotate on the ends of said tubing, a bolt' which is ,passed laxially through ythe tubing and through the hubs, means on said bolt to adjustably connect the wheels thereon, said wheels being connected lso as to provide a limited lateral play on the axle, saidaxle being adapted to be filled with grease, and having an air hole, substantially as described.

Iny testimony whereof I affix my signature in presence or' two Witnesses.

Jol-1N F. Fox. Witnesses: J. J. SHANNON,

NoMIn WELSH.- 

